// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_GUEST_H_
#define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_GUEST_H_

#include <memory>
#include <vector>

#include "base/macros.h"
#include "build/build_config.h"
#include "content/browser/renderer_host/render_view_host_delegate_view.h"
#include "content/browser/web_contents/web_contents_view.h"
#include "content/common/content_export.h"
#include "content/common/drag_event_source_info.h"

namespace content {

class WebContents;
class WebContentsImpl;
class BrowserPluginGuest;

class WebContentsViewGuest : public WebContentsView,
                             public RenderViewHostDelegateView {
public:
    // The corresponding WebContentsImpl is passed in the constructor, and manages
    // our lifetime. This doesn't need to be the case, but is this way currently
    // because that's what was easiest when they were split.
    // WebContentsViewGuest always has a backing platform dependent view,
    // |platform_view|.
    WebContentsViewGuest(WebContentsImpl* web_contents,
        BrowserPluginGuest* guest,
        std::unique_ptr<WebContentsView> platform_view,
        RenderViewHostDelegateView** delegate_view);
    ~WebContentsViewGuest() override;

    WebContents* web_contents();

    void OnGuestAttached(WebContentsView* parent_view);

    void OnGuestDetached(WebContentsView* old_parent_view);

    // WebContentsView implementation --------------------------------------------
    gfx::NativeView GetNativeView() const override;
    gfx::NativeView GetContentNativeView() const override;
    gfx::NativeWindow GetTopLevelNativeWindow() const override;
    void GetScreenInfo(ScreenInfo* screen_info) const override;
    void GetContainerBounds(gfx::Rect* out) const override;
    void SizeContents(const gfx::Size& size) override;
    void Focus() override;
    void SetInitialFocus() override;
    void StoreFocus() override;
    void RestoreFocus() override;
    DropData* GetDropData() const override;
    gfx::Rect GetViewBounds() const override;
    void CreateView(const gfx::Size& initial_size,
        gfx::NativeView context) override;
    RenderWidgetHostViewBase* CreateViewForWidget(
        RenderWidgetHost* render_widget_host,
        bool is_guest_view_hack) override;
    RenderWidgetHostViewBase* CreateViewForPopupWidget(
        RenderWidgetHost* render_widget_host) override;
    void SetPageTitle(const base::string16& title) override;
    void RenderViewCreated(RenderViewHost* host) override;
    void RenderViewSwappedIn(RenderViewHost* host) override;
    void SetOverscrollControllerEnabled(bool enabled) override;
#if defined(OS_MACOSX)
    void SetAllowOtherViews(bool allow) override;
    bool GetAllowOtherViews() const override;
    bool IsEventTracking() const override;
    void CloseTabAfterEventTracking() override;
#endif

    // Backend implementation of RenderViewHostDelegateView.
    void ShowContextMenu(RenderFrameHost* render_frame_host,
        const ContextMenuParams& params) override;
    void StartDragging(const DropData& drop_data,
        blink::WebDragOperationsMask allowed_ops,
        const gfx::ImageSkia& image,
        const gfx::Vector2d& image_offset,
        const DragEventSourceInfo& event_info,
        RenderWidgetHostImpl* source_rwh) override;
    void UpdateDragCursor(blink::WebDragOperation operation) override;
    void GotFocus() override;
    void TakeFocus(bool reverse) override;

private:
    // The WebContentsImpl whose contents we display.
    WebContentsImpl* web_contents_;
    BrowserPluginGuest* guest_;
    // The platform dependent view backing this WebContentsView.
    // Calls to this WebContentsViewGuest are forwarded to |platform_view_|.
    std::unique_ptr<WebContentsView> platform_view_;
    gfx::Size size_;

    // Delegate view for guest's platform view.
    RenderViewHostDelegateView* platform_view_delegate_view_;

    DISALLOW_COPY_AND_ASSIGN(WebContentsViewGuest);
};

} // namespace content

#endif // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_GUEST_H_
